2015 MERCEDES-BENZ SLK-CLASS ROADSTER automatic transmission

SLK 350
The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you engage reverse gear R.
R you move the transmission out of positionP.
R you unfasten your seat belt or open the
driver's door.
R the vehicle starts to roll.
R the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range.
R the system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
R the battery's condition of charge is too low.
iShifting the transmission to position P
does not start the engine.
SLK 55 AMG
The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you engage reverse gear R.
R you move the transmission out of positionP.
R you switch to drive program Sor M.
R you unfasten your seat belt or open the
driver's door.
R the vehicle starts to roll.
R the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range. R
the system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
R the battery's condition of charge is too low.
iShifting the transmission to position P
does not start the engine.
iIf you shift the transmission from Rto D,
the ECO start/stop function is available
again once the èECO symbol reap-
pears in green in the multifunction display.
Deactivating/activating the ECO start/
stop function
SLK 250
X To deactivate: press ECO button :.
Indicator lamp ;and the èECO sym-
bol in the multifunction display go out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If all conditions for automatic engine
switch-off ( Ypage 144) are fulfilled, the
è ECO symbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off ( Ypage 144) are fulfilled, the
è ECO symbol is shown in yellow in the
multifunction display.
If this is the case, the ECO start/stop func-
tion is not available.
Conditions for the automatic engine
switch-off ( Ypage 144).
Driving147
Driving and parking
Z

iThe ECO start/stop function is not avail-
able when reverse gear is engaged.
Further information on the ECO start/stop function ( Ypage 144).
Shift recommendation
X
Shift gear according to gearshift recom- mendation :when shown in the multi-
function display of the instrument cluster.
The gearshift recommendations assist you in adopting an economical driving style. The rec- ommended gear is shown in the multifunction
display.
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parkingbrake.
Selector lever
Overview of transmission positions
Selector lever j
Park position with selector lever lock
kReverse gear
iNeutral
hDrive
Transmission position and drive pro-
gram display
:Transmission position display
;Drive program display
The current position of the selector lever is
shown by the indicators next to the selectorlever.
The indicators light up when the SmartKey is inserted into the ignition lock. The indicators go out when the SmartKey is removed from
the ignition lock.
Automatic transmission151
Driving and parking
Z

Transmission positions
BPark position
Do not shift the transmission into
positionP(Y page 151) unless the
vehicle is stationary. The parking
lock should not be used as a brake when parking. Always apply the
electronic parking brake in addi-
tion to the parking lock in order to
secure the vehicle.
The SmartKey can only be removedif the transmission is in position P.
If the SmartKey is removed from
the ignition lock, the selector lever
is locked.
If the vehicle electronics are mal-
functioning, the selector lever may be locked in position P. Information
on manually releasing the parking
lock ( Ypage 158).
CReverse gear
Only shift the transmission to R
when the vehicle is stationary.
ANeutral
Do not shift the transmission to N
while driving. Otherwise, the auto-
matic transmission could be dam-
aged.
No power is transmitted from the
engine to the drive wheels.
Releasing the brake pedal will allow
you to move the vehicle freely, e.g. to push it or tow it.
If ESP ®
is deactivated or faulty:
only shift the transmission to posi-
tion Nif the vehicle is in danger of
skidding, e.g. on icy roads.
!Rolling in neutral Ncan damage
the drive train.
7Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Driving tips
Changing gear
The automatic transmission shifts to the indi- vidual gears automatically when it is in trans-
mission position D. This automatic gear shift-
ing behavior is determined by:
R the selected drive program ( Ypage 153)
R the position of the accelerator pedal (Y page 152)
R the road speed
Accelerator pedal position
Your style of driving influences how the auto-
matic transmission shifts gear:
R little throttle: early upshifts
R more throttle: late upshifts
152Automatic transmission
Driving an d parking

Double-clutch function
When shifting down, the double-clutch func-
tion is active regardless of the currently selec-
ted drive program. The double-clutch function reduces load change reactions and is condu-cive to a sporty driving style. The sound gen-
erated by the double-clutch function depends
on the drive program selected.
Kickdown
Use kickdown for maximum acceleration.
X Depress the accelerator pedal beyond the
pressure point.
The automatic transmission shifts to a
lower gear depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
Program selector button
General notes
Example: program selector button
X Press program selector button :repeat-
edly until the letter for the desired gearshift program appears in the multifunction dis- play.
The program selector button allows you to
choose between different driving character-
istics.
iFurther information about permanent
drive program M(Y page 155). As well as this permanent drive program
M,
you can also activate temporary drive pro-
gram M(Y page 154).
In AMG vehicles, drive program Eis called
drive program C.
E Economy
C Controlled
EfficiencyComfortable, economical
driving
S SportSporty driving style
M ManualManual gear shifting
Only change from automatic drive program E
or Sto manual drive program Mwhen the
vehicle is stationary.
iWhen the engine is started, the automatic
transmission always switches to automatic drive program E(drive program Cin AMG
vehicles).
iAMG vehicles: when in drive program C
and with a small load demand, the engine
will automatically only operate with four
cylinders. This is the case in city traffic or
on a country road, for example. This
reduces fuel consumption. Cylinder shut-
off is inactive in drive programs Sand M, so
that the engine will operate with all eight
cylinders.
iFor further information on the automatic
drive program, see ( Ypage 154).
Automatic transmission153
Driving and pa rking
Z

Steering wheel paddle shifters
:Left-hand steering wheel paddle shifter
;Right-hand steering wheel paddle shifter
In the manual drive program, you can change
gear using the steering wheel paddle shifters or the selector lever ( Ypage 154).
Further information about permanent drive program M(Y page 155).
Further information about temporary driveprogram M(Y page 154).
iThe full range of functions for the steering
wheel paddle shifters is available only once
operating temperature has been reached.
iYou can only change gear with the steer-
ing wheel paddle shifters when the trans-
mission is in position D.
Automatic drive program
Automatic drive programs E and S
Drive program E(drive program Con MAG
vehicles) is characterized by the following: R comfort-oriented engine and transmission
settings
R optimal fuel consumption resulting from
the automatic transmission shifting upsooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully R
increased sensitivity. This improves driving
stability on slippery road surfaces, forexample
R the automatic transmission shifting up
sooner. This results in the vehicle being
driven at lower engine speeds and the
wheels being less likely to spin
Drive program Sis characterized by the fol-
lowing:
R sporty engine and transmission settings
R the vehicle pulling away in first gear
R the automatic transmission shifting uplater
R the fuel consumption possibly being higher
as a result of the later automatic transmis-
sion shift points
Manual drive program M
General notes
In this drive program, you can briefly change
gear yourself by using the steering wheel pad-
dle shifters. The transmission must be in posi- tion D.
You can activate manual drive program Min
the Eand Sautomatic drive programs.
iAs well as temporary drive program M,
you can also activate permanent drive pro-
gram M(Y page 153).
Further information about permanent drive program M(Y page 155).
Activating
X Shift the transmission to position D.
X Pull the left or right steering wheel paddle
shifter ( Ypage 154).
Manual drive program Mis temporarily acti-
vated. The selected gear and Mappear in
the multifunction display.
154Automatic transmission
Driving and parking

UpshiftingX Briefly press the selector lever to the right towards D+.
or X Pull the right-hand steering wheel paddle
shifter ( Ypage 154).
In cases where it is permissible, the auto-
matic transmission shifts up to the nextgear.
iIf the maximum engine speed on the cur-
rently engaged gear is reached and you
continue to accelerate, the automatic
transmission automatically shifts up in
order to prevent engine damage.
Shift recommendation
The gearshift recommendations assist you in
adopting an economical driving style. The rec- ommended gear is shown in the multifunction
display.
X Shift to recommended gear ;according
to gearshift recommendation :when
shown in the multifunction display of the
instrument cluster.
Downshifting X Briefly press the selector lever to the lefttowards D–.
or
X Pull the left-hand steering wheel paddle
shifter ( Ypage 154).
In cases where it is permissible, the auto-
matic transmission shifts down to the next
gear.
iFor maximum acceleration, push the
selector lever to the left or pull and hold the
left-hand steering wheel paddle shifter until the transmission shifts to the optimal gear
for the current speed.
iIf the engine exceeds the maximum
engine speed when shifting down, the auto-
matic transmission protects against engine damage by not shifting down.
iAutomatic down shifting occurs when
coasting.
Deactivating
If you have activated manual drive program M , it will remain active for a certain amount of
time. Under certain conditions the minimum
amount of time is extended, e.g. in the case of lateral acceleration, during an overrun phase
or when driving on steep terrain.
If manual drive program Mhas been deacti-
vated, the automatic transmission shifts into
the automatic drive program that was last
selected, i.e. Eor S.
You can also deactivate manual drive pro-gram Myourself:
X Pull on the right-hand steering wheel pad-
dle shifter and hold it in place ( Ypage 154).
or
X Use the lever to switch the transmission
position.
or
X Use the program selector button to change
the drive program ( Ypage 153).
Manual drive program Mis deactivated.
The automatic transmission switches into
the automatic drive program that was last
selected, i.e. Eor S.
Manual drive program
General information
In this drive program, you can permanently
change gear yourself by using the steering
wheel paddle shifters. The transmission must be in position D.
Automatic transmission155
Driving and parking
Z

iAs well as this permanent drive program
M , you can also activate temporary drive
program M(Y page 154).
Switching on the manual drive program
Manual drive program Mis different from
drive program Swith regard to spontaneity,
responsiveness and smoothness of gear
changes.
Manual drive program Mcan be selected
using the program selector button. You can
change gear using the steering wheel paddle
shifters or the selector lever in manual drive
program Mif the transmission is in position D.
The selected gear appears in the multifunc-
tion display.
X Press the program selector button(Y page 153) repeatedly until Mappears in
the multifunction display.
Upshifting
X Briefly press the selector lever to the right
towards D+.
or X Pull the right-hand steering wheel paddle
shifter ( Ypage 154).
The automatic transmission shifts up to the
next gear.
Shift recommendation
The gearshift recommendations assist you in
adopting an economical driving style. The rec- ommended gear is shown in the multifunction
display.
X Shift to recommended gear ;according
to gearshift recommendation :when shown in the multifunction display of the
instrument cluster.
AMG vehicles
!In manual drive program
M, the automatic
transmission does not shift up automati-
cally even when the engine limiting speed
for the current gear is reached. When the
engine limiting speed is reached, the fuel
supply is cut to prevent the engine from
overrevving. Always make sure that the
engine speed does not reach the red area of
the tachometer. There is otherwise a risk of
engine damage.
:Gear indicator
;Upshift indicator
Before the engine speed reaches the red area, an upshift indicator will be shown in the mul-
tifunction display. X If the color in the speedometer multifunc-
tion display changes to red and the
UPdis-
play message is shown, shift up a gear.
Downshifting
X Briefly press the selector lever to the left
towards D–.
or X Pull the left-hand steering wheel paddle
shifter ( Ypage 154).
The automatic transmission shifts down to
the next gear.
iIf you brake the vehicle or stop without
shifting down, the automatic transmission
will shift down to a gear that will allow the
vehicle to accelerate or pull away again.
156Automatic transmission
Driving an d parking

iFor maximum acceleration, push the
selector lever to the left or pull and hold the
left-hand steering wheel paddle shifter until the transmission shifts to the optimal gearfor the current speed.
Kickdown
You can also use kickdown for maximum
acceleration in manual drive program M.
X Depress the accelerator pedal beyond the
pressure point.
The automatic transmission shifts to a
lower gear depending on the engine speed.
iAMG vehicles: it is not possible to use
kickdown in manual drive program M.
Switching off the manual drive program
X
Press the program selector button (Y page 153) repeatedly until E(C in AMG
vehicles) or Sappears in the multifunction
display.
Automatic transmission157
Driving and parking
Z